The Senate's Permanent Subcommittee on Investigations (PSI) has released a report criticizing Goldman for "exploiting" clients by unloading subprime loan exposure onto unsuspecting clients in 2006 and 2007 and concluded that its top executives misled Congress during testimony in 2010, Reuters reports.

Blankfein has hired Reid Weingarten, a high-profile Washington defense attorney, to help him with legal matters and has denied any wrongdoing.

"As is common in such situations, Mr. Blankfein and other individuals who were expected to be interviewed in connection with the Justice Department's inquiry into certain matters raised in the PSI report hired counsel at the outset," Goldman Sachs says in a statement, according to Reuters.